What are butterfly valves best for?
butterfly valves have a high flow capacity and are used for throttling, however they do not provide the best flow control due to their non-linear flow and high pressure drop profiles. Its small size with a few turns to open or close (¼ turn) and it has also a very good sealing performance makes it an excellent candidate for a multitude of applications such as water distribution, fire prevention, chemical processing, and many more. Because of the simple construction, butterfly valves have low maintenance costs and good cost performance when compared to gate or ball valves in particular in the case of those for large diameter pipes.
Probably the most common use is in irrigation and HVAC applications. Well known brands of products such as Ductile Iron Grooved Type Butterfly Valve ASTM A536 are the preferred choice and are mostly recommended and used owing to its superior punch of strength, Rust resistance and adaptability with grooved pipe system. The shut-off that these valves can provide, as well as their rapid installation, make them the preferred option for municipal water projects and commercial buildings.
Butterfly valves are also prevalent in fire protection systems. Red Color Painted Cast Iron Fireproof Wafer Butterfly Valve are developed for high temperature in extreme environment and can be used in severe emergencies. The wafer type construction of these butterfly valves allows them to be placed between flanges for space saving without any compromise on safety.
Handle grooved end butterfly valves are a solution for your needs if you need to operate a valve manually in a confined space. For mechanical rooms, irrigation systems, process skids and more, these valves are often used where quarter-turn operation is a must. Combined with soft seat material, provide bubble-tight shut off even under fluctuating pressure conditions.
The Duplex Type Pinless Butterfly Valve and Rubber Lined Pinless Butterfly Valve are advanced designs that do not have stem pins, which minimize wear and increase the torque transmission. Because of this, they are well-suited for use in high-cycle abrasive duty applications such as wastewater treatment and slurry handling. Similarly Copper Lined With Rubber Flanged Butterfly Valves are also corrosion resistant and best sealing in marine and desalination plant.
In applications when rangeability and seat life are paramount, Concentric Rubber Sleeve Double Flanged Butterfly Valves ensure a uniform seal around the disc which reduces the risk of leaks. On the other hand, Electric Flange Butterfly Valves offer fully automated flow control in distant or dangerous locations directly compatible with modern control systems.
Grooved End Butterfly Valve Soft Seat & Lever Operator is another classic arrangement for hand operation with ease of installation in grooved coupling. Wrapping up the special features of U section disc is the Coating Disc U Section Type Butterfly Valves that are made with specially coated discs to increase durability and reduce friction, resulting in longer service life of the valve in abrasive media.
To summarize, the butterfly valve is worthy in areas needing a lightweight construction, short on time operation and reliable isolation. If you want fire-safe compliance, corrosion resistance, or automated control, there is a butterfly valve design that'll enable you to meet system requirements in a cost-efficient and cost-effective manner.